Navigation Links
Viron granted U.S. Patents for Organ Transplant and Arthritis Drug Candidates

LONDON, ON, Dec. 22 /PRNewswire/ - Viron Therapeutics Inc., a biotechnology company pioneering the development of virally-derived protein therapeutics, today announced that it has been granted U.S. patents related to three of its drug candidates, VT-111, VT-346 and VT-384. These patents join a portfolio of more than 80 previously-granted patents for Viron's multiple therapeutic candidates. Viron's unique drug discovery platform identifies proteins expressed by non-human viruses that have evolved over millions of years of evolutionary selection to evade their host's immune system, endowing them with powerful immuno-modulatory and anti-inflammatory properties.

The new patent, US 7,514,405, entitled "Methods for treating transplant rejection," covers the treatment of chronic transplant rejection by administering VT-111 in combination with an immunosuppressant, such as cyclosporine. "This patent extends protection for VT-111 in transplant out to at least 2021," said Kevin Sullivan, Vice President of Business Development for Viron Therapeutics. "This provides ample time for us to unlock the commercial potential arising from upcoming organ transplant trials." Viron will pursue the transplant indication in parallel with Acute Coronary Syndromes (ACS) for VT-111, due to the significant unmet medical need in this space and the resulting rapid regulatory path forward. There are currently no therapeutic molecules targeting chronic organ rejection.

Viron's lead therapeutic candidate, VT-111, has demonstrated potent effects in preclinical suppression of chronic organ transplant rejection and, in a Phase IIa clinical trial of 48 patients, demonstrated reduced cardiac tissue damage in patients with ACS receiving cardiac stent implants. "It is remarkable to see such a small trial demonstrate such a strong, statistically significant impact in this target population," said Mr. Sullivan. "These trial results provide a compelling validation of Viron's approach to drug discovery."

Viron's second therapeutic candidate, VT-346, is a powerful inhibitor of TNF-a, the therapeutic target of Enbrel(TM), Humira(TM), Cimzia(TM) and Remicade(TM), which together share a market estimated at over $20 billion annually. In head to head testing, VT-346 has proven itself to be as much as 100 times more potent than some currently marketed therapeutics, due in part to a novel mechanism of action evolved by the original virus.

The latest patent for VT-346, US 7,585,507, entitled "Nucleic acid molecules and polypeptides for immune modulation", relates to the use of VT-346 in treating immuno-modulatory disorders characterized by inflammation, such as rheumatoid arthritis, transplant rejection, asthma and inflammatory bowel disease. The protection provided by this patent also extends out to at least 2021.

Viron recently received a Notice of Allowance from the US patent office for a patent on VT-384, a protein derived from the Yatapoxvirus that targets IL-18, a cytokine expressed at sites of chronic inflammation. This cytokine has been implicated in numerous autoimmune diseases and a variety of cancers.

"IL-18 is a target of keen interest to big Pharma, with several monoclonal antibody candidates targeting IL-18 in various stages of development. Viron's discovery platform identified this natural protein that targets IL-18, which falls outside the complicated anti-IL-18 antibody patent landscape. This has hindered development of some anti-IL-18 antibody approaches. As such, we believe the commercial prospects for VT-384 in diseases such as arthritis and COPD could be very significant," said James Rae, Chief Executive Officer of Viron Therapeutics. "These issued patents also highlight our ability to discover and develop unique therapeutics which reside within pathogens and which have had millions of years to perfect strategies to modulate the immune system."

About Viron Therapeutics Inc. (

Viron Therapeutics is a biopharmaceutical company pioneering the development of viral proteins, a revolutionary new class of drugs. By harnessing the evolutionary power of viruses and other pathogens to evade the human body's protective inflammatory response, Viron is able to identify and develop powerful protein therapeutics that have distinct advantages in potency and efficacy over conventional drug therapy. The Company's proprietary PROSPECT(TM) technology, PROtein Screen for Pathogen-Evolved Combination Therapeutics, is a platform for the discovery of new immune-modulating protein therapeutics. Its significant pipeline of products target critical pathways that have broad application to immune and inflammatory-based diseases such as cardiovascular disease and rheumatoid arthritis. VT-111, the Company's lead compound, is in development to treat Acute Coronary Syndromes and solid organ transplant rejection.

SOURCE Viron Therapeutics Inc.

SOURCE Viron Therapeutics Inc.
Copyright©2009 PR Newswire.
All rights reserved

Related biology technology :

1. Sigma-Aldrich and Lab Manager Magazine Present Webinar On Laboratory Environmental, Health and Safety Compliance Strategies
2. Landfill mining reduces environmental impact of growing waste
3. Landfill mining reduces environmental impact of growing waste
4. Nanowire generates power by harvesting energy from the environment
5. Caliper Life Sciences Awarded National Institute of Environmental Health Services Contract Valued to $7.0 Million
6. Environmental Tectonics Corporations BioMedical Division Announces New Contract
7. Sinovac Reports Top-Line Preliminary Phase II Results of Pandemic Influenza (H5N1) Whole Viron Vaccine
8. Environmental Tectonics Corporation Announces Sale of Monoplace Hyperbaric Chambers
9. NanoLogixs Hydrogen-From-Waste Technology at Welchs Foods Featured on Environmental Radio Program
10. Nanotechs health, environmental impacts worry scientists and the public
11. Fixed C-Arms Revolutionize Operating Room Environments
Post Your Comments:
(Date:12/1/2015)... ... December 01, 2015 , ... RURO, Inc., a leading LIMS, ... animal colony management software solution, ezColony®, is now available as a subscription-based, cloud-hosted ... , Many organizations are moving to cloud-hosting for LIMS and ...
(Date:12/1/2015)... ... December 01, 2015 , ... The American Society of Gynecologic ... Kyle Mathews will join fellow surgeons in the shared pursuit of ÔÇťadvancing ... experienced urogynecologist, founder of Plano Urogynecology Associates and Fellow of the American ...
(Date:11/30/2015)... ... November 30, 2015 , ... ... new, Good Manufacturing Practice (GMP) 10000 in the Santiago Marriott. The Global Stem ... is operated by a world-class team of qualified medical researchers and practitioners, experienced ...
(Date:11/30/2015)... ALBANY, N.Y. , Nov. 30, 2015 /PRNewswire-USNewswire/ ... led by assistant chemistry professor Jan Halámek, is ... level.   --> ...   --> ... researchers at UAlbany have discovered a straightforward concept ...
Breaking Biology Technology:
(Date:11/9/2015)... 09, 2015 ... the "Global Law Enforcement Biometrics Market ... --> ) has announced the ... Biometrics Market 2015-2019" report to their ... ( ) has announced the addition ...
(Date:10/29/2015)... , Oct. 29, 2015  The J. Craig ... report titled, "DNA Synthesis and Biosecurity: Lessons Learned and ... Department of Health and Human Services guidance for synthetic ... 2010. --> --> ... also has the potential to pose unique biosecurity threats. ...
(Date:10/29/2015)... , Oct. 29, 2015 Today, ... announced a partnership with 2XU, a global leader ... deliver a smart hat with advanced bio-sensing technology. ... other athletes to monitor key biometrics to improve ... strategic partnership, the two companies will bring together the ...
Breaking Biology News(10 mins):